GitLab: 如何使用外部提供的Redis缓存数据库

た入场券 2022-12-03 08:44 294阅读 0赞

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缺省的情况下GitLab的官方镜像中提供了一个Redis，如果希望把此缓存数据库放在GitLab的容器之外的话需要怎么做呢？这篇文章结合示例进行说明具体的做法。

--------------------

### 文章目录 ###

*  环境准备
 *   *  配置文件：GitLab
     *  配置文件：Redis
     *  启动命令
     *  结果确认
 *  使用外部Redis服务
 *   *  步骤1: 设定gitlab.rb
     *  步骤2: 验证连接
     *  步骤3: gitlab-ctl reconfigure
     *  步骤4 ： 结果确认

--------------------

# 环境准备 #

## 配置文件：GitLab ##

version: '2'    
    services:
      # Version Control service: Gitlab
      gitlab:
        image: gitlab/gitlab-ce:12.10.5-ce.0
        ports:
          - "35001:80"
          - "30022:22"
          - "443:443"
        volumes:
          - ./log/:/var/log/gitlab
          - ./data/:/var/opt/gitlab
          - ./conf/:/etc/gitlab
        restart: "no"

## 配置文件：Redis ##

[root@liumiaocn redis]# cat docker-compose.yml 
    version: '2'
    services:
      # redis master
      master:
        image: redis:5.0.9
        container_name: redis
        restart: always
        command: redis-server --port 6379
        ports:
          - 6379:6379
        volumes:
          - ./data:/data
    [root@liumiaocn redis]#

## 启动命令 ##

> 执行命令：docker-compose up -d

## 结果确认 ##

*  GitLab

[root@liumiaocn gitlab]# docker-compose ps
         Name             Command          State                                     Ports                               
    ---------------------------------------------------------------------------------------------------------------------
    gitlab_gitlab_1   /assets/wrapper   Up (healthy)   0.0.0.0:30022->22/tcp, 0.0.0.0:443->443/tcp, 0.0.0.0:35001->80/tcp
    [root@liumiaocn gitlab]#

*  Redis

[root@liumiaocn redis]# docker-compose ps
    Name               Command               State           Ports         
    -----------------------------------------------------------------------
    redis   docker-entrypoint.sh redis ...   Up      0.0.0.0:6379->6379/tcp
    [root@liumiaocn redis]#

--------------------

# 使用外部Redis服务 #

## 步骤1: 设定gitlab.rb ##

[root@liumiaocn redis]# docker exec -it gitlab_gitlab_1 sh
    # cd /etc/gitlab
    # ls
    gitlab-secrets.json  ssh_host_ecdsa_key      ssh_host_ed25519_key      ssh_host_rsa_key      trusted-certs
    gitlab.rb	     ssh_host_ecdsa_key.pub  ssh_host_ed25519_key.pub  ssh_host_rsa_key.pub
    # cp -p gitlab.rb gitlab.rb.org
    # vi gitlab.rb
    # 
    # diff gitlab.rb gitlab.rb.org
    585,586c585,586
    < gitlab_rails['redis_host'] = "192.168.163.151"
    < gitlab_rails['redis_port'] = 6379
    ---
    > # gitlab_rails['redis_host'] = "127.0.0.1"
    > # gitlab_rails['redis_port'] = 6379
    1049c1049
    < redis['enable'] = false
    ---
    > # redis['enable'] = true
    #

## 步骤2: 验证连接 ##

[root@liumiaocn redis]# docker exec -it gitlab_gitlab_1 sh
    # redis-cli -h 192.168.163.151 -p 6379
    192.168.163.151:6379> ping
    PONG
    192.168.163.151:6379> keys *
    (empty list or set)
    192.168.163.151:6379>

## 步骤3: gitlab-ctl reconfigure ##

> 执行命令：gitlab-ctl reconfigure

或者

> 执行命令：docker-compose restart

执行日志示例如下所示：

# gitlab-ctl reconfigure
    Starting Chef Client, version 14.14.29
    resolving cookbooks for run list: ["gitlab"]
    Synchronizing Cookbooks:
      - package (0.1.0)
      - postgresql (0.1.0)
      - redis (0.1.0)
      - monitoring (0.1.0)
      - registry (0.1.0)
      - mattermost (0.1.0)
      - consul (0.1.0)
      - gitaly (0.1.0)
      - praefect (0.1.0)
      - letsencrypt (0.1.0)
      - nginx (0.1.0)
      - runit (4.3.0)
      - acme (4.1.1)
      - crond (0.1.0)
      - gitlab (0.0.1)
    Installing Cookbook Gems:
    Compiling Cookbooks...
    Recipe: gitlab::default
    ...省略
    Recipe: monitoring::gitlab-exporter
      * runit_service[gitlab-exporter] action restart (up to date)
    
    Running handlers:
    Running handlers complete
    Chef Client finished, 14/654 resources updated in 03 minutes 13 seconds
    gitlab Reconfigured!
    #

注：虽然提示已经完成了，后续的处理一般还需要稍等，可根据docker logs命令获取的日志信息来以及docker ps返回的状态信息来确认是否真正结束。

## 步骤4 ： 结果确认 ##

登录之后可以正常进行root密码的重置  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdW1pYW9jbg_size_16_color_FFFFFF_t_70_pic_center 1]  
重置之后也可以使用新的密码正常登录  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdW1pYW9jbg_size_16_color_FFFFFF_t_70_pic_center 2]

*  进入到GitLab容器中可以看到内置的Redis的服务已经不在运行了

[root@liumiaocn gitlab]# docker exec -it gitlab_gitlab_1 sh
    # gitlab-ctl status
    run: alertmanager: (pid 1629) 714s; run: log: (pid 972) 1117s
    run: gitaly: (pid 1609) 718s; run: log: (pid 462) 1337s
    run: gitlab-exporter: (pid 2412) 671s; run: log: (pid 893) 1152s
    run: gitlab-workhorse: (pid 2405) 672s; run: log: (pid 831) 1183s
    run: grafana: (pid 1644) 713s; run: log: (pid 1443) 778s
    run: logrotate: (pid 864) 1167s; run: log: (pid 873) 1166s
    run: nginx: (pid 846) 1178s; run: log: (pid 855) 1177s
    run: postgres-exporter: (pid 1638) 713s; run: log: (pid 1008) 1103s
    run: postgresql: (pid 498) 1323s; run: log: (pid 523) 1322s
    run: prometheus: (pid 1584) 719s; run: log: (pid 940) 1130s
    run: sidekiq: (pid 2399) 672s; run: log: (pid 811) 1194s
    run: sshd: (pid 30) 1381s; run: log: (pid 29) 1381s
    run: unicorn: (pid 3147) 499s; run: log: (pid 792) 1203s
    #

*  连接外部的Redis服务即可可以看到相关的缓存数据内容了。

[root@liumiaocn gitlab]# docker exec -it redis sh
    # redis-cli -h 192.168.163.151 -p 6379
    192.168.163.151:6379> ping
    PONG
    192.168.163.151:6379> keys *
     1) "resque:gitlab:cron_job:repository_check_worker"
     2) "resque:gitlab:cron_job:container_expiration_policy_worker"
     3) "resque:gitlab:cron_job:import_export_project_cleanup_worker"
     4) "resque:gitlab:cron_job:container_expiration_policy_worker:enqueued"
     5) "gitlab:exclusive_lease:user_update_tracked_fields:1"
     6) "resque:gitlab:cron_job:pages_domain_verification_cron_worker"
     7) "cache:gitlab:broadcast_message_current_banner_json"
    ...省略
    94) "cache:gitlab:flipper/v1/feature/prometheus_metrics_measure_import_export_clean_up_cpu_duration"
    95) "resque:gitlab:cron_job:remove_unreferenced_lfs_objects_worker:enqueued"
    96) "resque:gitlab:cron_job:prune_old_events_worker:enqueued"
    97) "cache:gitlab:flipper/v1/feature/soft_email_confirmation"
    98) "session:gitlab:2::ad9aec16d58b972dc89d245757ab7b87b4fcb5c08b9fdcb4572be5ebe4807cba"
    99) "resque:gitlab:queues"
    192.168.163.151:6379>

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